Extension-table lock.



. No. 890,732. PATENTED JUNE 16, 1908.

E. TYDEN. EXTENSION TABLE LOCK. APPLICATION FILED mmf/,1907.

` 3 SHEETS-SHEET 1.

KQ SW NBM VER if n QQN o I VNV.

No. 890,732. Y PATENTED JUNE 16, 1908.

E. TYDEN.

EXTENSION TABLE LOCK. APPLICATION TILED-MAY27, 1907.

3 SHEETS-SHEET 2.

No. 890,732. PATENTED JUNE 16, 1908.

E. TYDEN.

EXTENSION TABLE LOCK. APPLICATION FILED MAY 27.1907.

3 SHEETS-SHEET 3.

EMIL TYDEN, OF HASTINGS, MICHIGAN.

EXTENSION-TQBLE LOCK.

.I Application filed May 27, 1907. Serial No. 375,804. i

l to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improvedmeans for locking up the top of an extension table. lt has the s eciiic purpose, furthermore, of locking'up t e top of a pedestal extension table. in which the top is mited-ly extensible Without extending the pedestal, so thatwhile the pedestal is locked (or if the pedestal is not extensible) the top being extended to admit the fillers may be closed together embracin theiillers tightly tion.

and locked in such comp etelyclosed posi- It consists of the features-.of construction shown. and described as indicated in the claims.

In the drawings Figurel is a vertical.

longitudinal section of .a pedestal table embodying this invention showing the table unextended, closed and locked. Fig. 2 is a @view similar to Fig. 1 ofthe upper portion bf the table showing the table to extended and locked with fillers interpose Fig. 3 is a'.

' plan View with the to in part broken away and the top locking evices omitted. Fig.

4 `is a detail section in the .same plane as Figs.

' different osition.

Fig. 1.

.1 and l2 showing' thetop locking device in a Fig. 5 is a similar View showing tI e locking devices in posit-ion of en.

gagement for locking up the table when extended, but before completing the locking. Fig is a detailsection 1n the same plane as Fig. 1 showing a art ofthe looking device which is part y obscured by other parts in The two'separable members, 1 and 2, of the rtable top `1t ma be understood are connected 'in the usua manner by slides, 3, t

the middle one of which the center leg, 5, is

connected by the bridge, 4. The drawingsk showithis invention a plied to a edestal table in which the peflbstal is .divi ed, the two members, 6 and 7, being adapted to in- 'close the center leg, 5, and being provided with a locking device of familiar construction,

which .need be indicated only in general, the

entire A.lockilrg'"parts the pedestal.;

Specification of Letters Patent.

' being denoted Patented June 1,6, 1908.

. l.anIssUED by the reference numeral. 8, and the operating lever handle and connec- Ations therefrom by the referencenumeral, 9.

These operating connections are mounted at the end of the cap, 10, of the pedestal meinber, 7 ,and are in position to be reached by the operatorstanding at the end of the table, being within reach from that position even when the table top' is extended while the pedestal remains closed, as shown in Fig. 2. The particular character of the pedestallocking devices are not material, and the form selected for illustration is chosen because of. its familiarity, being that shown in my Patent No. 765,644, -requiring'no fur ther articular description. The table top mem ers are adapted to. be extended or spread apart without extending the pedestal', the devices for that purpose being the familiar slides whichFperinit `-such extension toadeti'- nite limit determined by the stops in the slides, which need no description. The drawings indicate the limit of such extension to be sufficient for the introduction of two fillers, 11,\11, and the total distance which the two top members maybe se arated tor this purpose exceeds the Width o the fillers,

ftherefore, by atleastthe added length of the tenons. For -clamping and locking up the table top Without the fillers, there is provided on the table topmember, 1, a hook latch,`12, y

for the engagement of Whose hook no se, 12a, there 1s provided a catch plate or housing, 13, fast. on the opposite table 'member The hook nose latch, 12, is pivotally connected for operation with a slide or thrust rod, 14, mounted for sliding in a bracket, 15, secured to the table top member, 2. This bracket is formedso as to receive between the bearings of the thrust rod a spring, 18, coiled around the rod connected thereto at one end and at the other end reacting against the bracket for 1,4,A in its bearings. When the lever, 16, is rocked to the 1position .shownin Fig. the

pivotal connection of the link,17, being' at the opposite side of the fulcrum of the leverfrom the'connection o f said link tothe rod, 14, and the lever, 16, being stopped against upward movement, the p'ull of the spring, 16,

latch-which projects upward therefrom en` countersvthe abrupt shoulder of a tooth, 15 a',

which projects downward just in advance of said tmplug, being conveniently formed on the bracket, 15, as seen, and such encounter' causes thelatch to be rocked over its pivotal connection to the thrust rod and lifted at the forward end, disengaging its hook nose from the latch plate so that the table members'may be separated.'

When the tablel top members are spread for the admission of the two leaves for which provision is made in the extensibility of the slides which carry the top relatively'to those which carry the pedestal, the same latch, 12, is designed to be operated bythe same means for clamping the two table top'members together forA taking up the slack or interval necessary for the admission-of the tenons, and lfor that purpose there is mounted upon the pedestal cap, 10, of the pedestal member, 6, near the outer end Tof said cap, a catch nose or stop, 19, .in position' to be engaged by the. When the table top is drawn outward .to the limit voi lextension provided, the, latch, 12, can be hook nose, 12a, of the latch, 12.

dropped low enough so that saidI stop,` 19,

shall be in the path of said hook nose of the'- ln order that the latch may be` thus` latch. y lowered at the end and checked at the right position for'engagement of its hooknose'` with the sto ,'19, a finger, 14, is providedon the forwar end ofthe rod, 1 4, -]utting laterally -and taking inte a slot, 12.0, inthe latch, 12.-

'lhis sl'otvis long enough vertically to permit th'e'latch a range of vertical movement suficient to drop its nose to the desired line for 'encounter with the stop, l19.

The latch cannot drop-while engaged with the latch plate nor while its4 trip lug, 12a., is'

pressed against the stop', 15, but if therod, 14, is retracted by the' operation of the lever, 16, when the latch is' out of thehousing, 13,

the trip lug,- 12b, havingroom for movement to the extent that it would be drawn awa from the stop, 15, if the latch did not fal permits Athe" latch to fall to the extent permitted by the slot, 12C, andits catch nose is thereby brought into position for engage;4

ment with the s top, 19. The engaging shoulder, 12b, of thehook nose, 12, of the t5 latch makes such an angle with thegeneral trend of the latch that 'when the 'latch drops to the oblique positionne'cessary lto bring its of the' table, and the inner face of the abutment, 19, being made similarly inclined soas to' be quite acute to saidhorizontal path, the

,two 'shouldersf-'of .the latch nose and ofthe abutment,- engage'in such manner that the pull ofth'e rod, 14,upon thel latch `when the lever,` 16, ,is operated for locking, 'although exerted at a linev considerablyl abovethe latch nosel engagement with thestop will not operatelto disengage the parts `but only to draw the table members 'tightly together, clamping between them' theinterposed iillers,v4

To provide for any swelling of the-table top which is liable to;occur andmake the device o erativeforlocking without overstraining t ve parts notwithstanding'such swelling, and j also to make it possible to provide forclosing the 'to together closely, even if there should be a s rinkinginstead of la swellingof the' table top mem ers'or fillers orboth, the link, 17, ispreferab y made in two parts, -onevof the parts having an' oiisetwlu'g, 17, through `which the other art,- 17", which -is-arod, is f' inserted, the en of the rod being threaded and provided with a nut, 17?', between which and the oiiset 'lug, 17E, there is coiled on the rod the s ring, 17h, making the link as a. whole yie dingly `extensible so thatit may be adjusted to require some compression -in i springing the parts to locked position at the normal dimensions of lthe table top and llerspithat is, when they are neither swollen -nor shrunken,-'arid to be susceptible of more-compression tov accommodate them in case of4 swelling, being less compressed, but

stillo'perate w1th sufficient tensionto' draw the parts together in case therevis some shrinkage.

It wint@ tbvi'ous; that the 'expediente above described for closingand lockingup the table top membersv of the edestal table when. the pedestal is dividef and' locked would be applicablewithoutregard to the dividedcharacter of the pedestal, since they v'operate while .the pedestal is locked together and isin eiiect'unitary so far 'as theextension of thetop'is concerned.

By duplicating thecatch nose, 19, ata

point inward from the 'ofne with which the latch, v12, is shown engaged in Fig. 2,. the tabletop 2 may be locked with'respect to the pedestal member `6 at an intermediate point corresponding, for example, to an extension Iof the top enough to accommodate one filler instead of two', In order that the table may be closed up. symmetrically with rone filler', it is then desirable to provide: eans for' se curing the'. top of'ithe 'other p. lstal table "member relatively -t its pedestalv atl a correspondinglyextend'e position. A 'convenj ient. expedient for this purpose consists in a lever dog, 20, pivoted to the under side of the -top of said opposite table -membe`r 1,

having on its lower edge a`y V-shaped tooth, a, and mountingupon the to ofthe edestal member, 7, an. engaging p ate, 21,- 'avi ilg. e V-sha ed notch,21a, at a positionto be engaged ll Y member, 1, islextended relatively Stof the pedestalmember, 7, one-half the unit fillerl lever dog, 20,4

width. The freeend Aof the extends past the inner edgeof the table top member; v1, so that it projects under theiller, 11, which the proJecting end of the dog is pro-vided with an upwardly .extending nose., 20", .which is encountered by theiiller when the latter is inserted, causing the lever tobe pressed. en aged in down forholding the to'oth, 20, the notch, 21?., jThe tooth and noto 'are so slopedthat the tooth will readily draw out v of the notch in either ddirection unless the lever .dog is thus held down,'but when so held' thedog' and, plate are securely engaged closed together without any filler interposed 'with eachother and thereby the table top, 1, vvissecurely'locked to the pedestal member, 7', at thepoint of extension indicated.

` The plate, I21, may have an additional notch, 2lbl,in position to be engaged by the tooth,'20, when the' two table members are between them,.and the nose, 2Gb, of the atch, 20, ma be sloped on its end toward the .PO' site ta lemember so as to be encountereby the lower edge of that. member when" the table-trip members are closed to ether, with thefeiect ofcrowdingthe latch own to perthe' pedestal feet engagement ofits tooth, -20a,with the parts were not perfectly notch, 21 if the registered and engaged, therebydrawing up theftble-.to member, 1, to fully closed posi? tion for 10.0` ng when the twotop members are' pushed` together, andV thus theelsttension of the top member, spect to the top member,

.preventing 1,with re- .pedestal member, 7, vunless the A2is. withdrawn with respect to `device, it is .onlyneces sary, therefore, to lock the top,.metlibera2;,l te the pedestal member,

6, which may, b edone'by the engagement'bf vthelatch,125, with a'thirdcatch n ose or stop or abutment, 19", at the inner end'of 'the same plate which and 19a. This expedient will dispense with the .latch plate, 13,011 the table top. It Willbeunderstoodv that when the tabletop member is locked on its pedestal inem.- l berat anyone of the limits of extension corresponding with oneor 19h, the operation of the pedestal lock will to the engagement of the dog, 1-2,

clamp the two table members together, both.

pedestal and top, precisely the same, whether the assemblage be with no ller when 19b is f or two lillers,

may be interposed, and preferably' member, 6. In order to lock" the table together when fully closed with this another ofthe teeth, 19, 19a and by the pedestal lock extension table is loc I- claim 1. In an extension table; in combination with the table top members, two sets` oislides hy which they are connected forfextension and lers adapted to beinterposed between them recisely las the ordinary edwithout llers.

the two sets o'n each Atable memberandmeans for locking the' two bridges together; two

tab top yrespectively'of one Itable member, whichare engageable when the fillers are in# terposed, for resisting relativeextension of sai top` and bridge, and' means for' moving one of the two engageable` devices foradf toward the members.

2. In a pedestal extensiontable', in combination with the table-to members and their parting plane'folf the twotab e `necting eac table top member to its pedestal member extensibly and fillers adapted to be v interposed when theyjareextended; means and cooperating devcescarred respectively by the top and pedestal 'ofon'e table'menlier adapted .to be engaged :whenllersare mterf posed for resisting relative-extension 'of the top andl pedestaf'- member and means for* moving one of said' engaged devices to ad- Vance the table -top member relatively to the of the table members.

i 3. lnpanextension tableQin 'combinationwith thetabIe to members and the two sets tension-,ia bridge connecting corresponding iAslidesjol thetwosetson each table member; means f orlocking the two bridges together; a

vlatch carried by one tabletop member: a device carried'by the opposite` table to member'adap-ted to be engaged by the late a de.- /vice carried by the brid e' of the same table member which carries t e latch adalpted to be engaged by the latch when the tab e top is' such 'extenslon and lmeans connected withl the latch carried by the same table vltcp member for operating it after itis engage "for adis engaged,

of slides by whic they are connected for exa bridge connecting correspondingslides of cooperating devices carried by thebridge and. 1.90A

for `locking together lthe pedestal lmembers .members,.jeach thus extended, to belocked vancing4 the tabletop relatively to the/brid e respective edestal mem ers, means for conpedestal member Vtoward the parting plane extended relatively 'to the bridge to limit 'l vancing the table member 'relatively toy r the parto'n'which theA latch is engaged and for securing it Vat advanced position.

4f In apedestal extension table, in; combination Withthe' two table-top members and their respective pedestal members means by which they are extensibly connected, means for locking together the tWotable-top menibers comprisinga latch on one member and an engaging'device von the other, a device carvl ried by the pedestal of the member having therlatch for coperating with. the latter 'to -latch-carrying member connected :to the 2()4 resist extension of said member, in position' for engagement with the latch when' the topf is extended vrelatively to the pedestal a pref. .determined distance.; iillers adapted tofbe ins ertedbetween therta'bletop members When they are thus extended a link'carried by the vlatch for longitudinal movement of the .lat-

ter; a spring operating on said link for thrusting it toward the-parting plane-oi1 the table members, the-latch having ar'1,o fset,' and an abutment carried by the table top encounthe latch relative to the linie I In a pedestal extension table, in combination With the tWo'table members comprising each a table top and its pedestal member 3 .means by which the-top 'and pedestal member, are extensibly connected and by Which l pedestal and means'by which the' table top` with respect to each other and With respect',

the' pedestal members are 'extensibly con-` nected With each other; means for locking .together the pedestal members While the table top'membersremain relatively extensible; coperating devices on the tvvo table top v membersadapted't be engaged,0'ne of said 'devices being movable on the table top which carries it and means for so 'moving it to draw said table-top members together when said devices are engaged, anda device carried b'y the pedestal member pertaining to the table top having said movable I engagingv device adapted 'to be engagedby the latter When the table-top is extended relatively' to the pedes.`

" linwardrelatively to the pedestal member.

tal-to. limit such-extension. v 6. In aped'estfal extension table having the table top members extensible relatively to their respective pedestal members, 1n' comf bination With such'table top members vand members are v'connected togetherv extensibly to the pedestal, coperating devices carried respectively by the pedestal and one table :top member positioned for engagement with each other When the table ,top membersr are extended and fillers are interposed, and

adapted by such engag'ementto resist relative. extension of said table top member and l the pedestal.

` top members.

7. In a pedestalextensiontable havingtable top members extensible relatively yto their respective pedestal .membersv in combination with such table top members and pedestal and `means by which .the tabletop.

members are connected together extensibly .with respect to each-other and With respect eachy other W en the table top members, aren extended and iillers are interposed,y for resisting relativeextensionof said top member' .and pedestal,` and adaptedfo'r drawing them' relatively in o'iposite directions.y

1'-8.f In' ape estal extension .table having thetable top members extensible relatively totheir 'respective pedestal members, in

combination with such table to members and pedestal and means by. Whic 1 the table topmembers are connected together extensibly with respect to each other `and With respect to the pedestal, tWo coperating devices carriedrespectively byl the"v pedestall land one table top member positioned for-en- Y,

gagementwith .f each other when the tableV top members are .extendedand fillers vare'A interposed, and adapted when vengaged for resisting relative Vextension of' said top memberfand pedestal, and means for moving one of the two engaging devicesrelatively to the part on Wl1ic h it is. mounted, for advancing the tabletop member relativel tothe pedestal toward the parting plane o 'the' two table 9.- In a pedestal extension-table,in combination with the pedestal members, the

table top members and means by which they top member and its pedestal member for en-` v gaging one top member Withits correspondmg pedestal member for hml'tmg its extension relatively thereto at defmite'points, and

coperating devices carried by the otherl pedestal and table top members res ectivelyf" adapted to be engaged for resisting t eir relativeextension-. &I 1d forcing the .top member* 10. In a pedestal extension table having 'the table top membersextensible relatively.

to their respective pedestal lmen 1bers,- the combination with means `on one table member for engaging the top With thev pedestal ber With respect to its pedestal member, the

`dog beingv extendedinward past the edgeof thetable member so as tobe stopped against upward movement by encounter with the under side of the opposite tabletop member or fillers for securing the engagement of the adjustment ofthe to and pedestal of said 15 .dog with the plate. member, the `dog belngv extended past-the 11. In a pedestal extension table having edge of said table member toward the other the table top members extensible relatively: member for encounter with the lower side of 5 to their respective pedestal members, "one the opposite table member or fillers for holdy table top and its pedestal member having coing its vtooth engaged with one of said notches. 2 0 operating devices" for engaging them to- In testimony whereof, I have hereunto set 1 gether adapted for forcing the table top inmy hand, in the presence of two witnesses, at ward relatively :to the pedestal, the other Chicago, Illinois, this 22d da)T of May, 1907.. l10 tablemember having upon the top a dog provided with adownwardly projecting EMIL TYDEN' V-sha ed tooth and upon the pedestal a In. the presence of plate aving V-shaped notches for engaging CHAS. S. BURTON,

the tooth at definite positions in the relative J. S. ABBQTT. 

